17b4d01d32c64a62e36496829da323fe308437048ca87143de7365fabd4194fd

Analysis

max time kernel
600s
max time network
360s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
22-11-2024 03:25

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General

Target

DgH5SjZFleOYoBTyxcgMDlZF9brN1mDI.exe
Size

176KB
MD5

b88fd69b53a6e4587d9e95a0c6061141
SHA1

728281eb2bde83701f379797f1b2e36765429543
SHA256

ebea4a46175b0e9c24e74b774f9ecfb036030f916ec5f2fced34fcb6c1f3ba57
SHA512

5105c000a7d0c2d68feb00e4f7de77b5afe58347b5d0c24f64346ec3bd8f684f1087ef8559c568f19ef47c301c7675cea0bf91d5551aeb38c89e23a114421aba
SSDEEP

3072:OCHM30xGHntNzuOIPEerSoKx1B2vUNc/H7BJ4gKraLKQ5oGqDQuRGBiY50pOwP:tMntdcKoWn2vzbvWm3ADQNwOo

Score

10^/10

discovery persistence upx

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\msconfig.dat"	svchost.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

Processes:

DgH5SjZFleOYoBTyxcgMDlZF9brN1mDI.exeexplorer.exeExplorer.EXEsvchost.exe

pid process

2532 DgH5SjZFleOYoBTyxcgMDlZF9brN1mDI.exe
2296 explorer.exe
1212 Explorer.EXE
2760 svchost.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

DgH5SjZFleOYoBTyxcgMDlZF9brN1mDI.exe

description pid process target process

PID 2696 set thread context of 2532 2696 DgH5SjZFleOYoBTyxcgMDlZF9brN1mDI.exe DgH5SjZFleOYoBTyxcgMDlZF9brN1mDI.exe

description	pid	process	target process
PID 2696 set thread context of 2532	2696	DgH5SjZFleOYoBTyxcgMDlZF9brN1mDI.exe	DgH5SjZFleOYoBTyxcgMDlZF9brN1mDI.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral2/memory/2696-0-0x0000000000400000-0x0000000000471000-memory.dmp	upx
behavioral2/memory/2696-13-0x0000000000400000-0x0000000000471000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

DgH5SjZFleOYoBTyxcgMDlZF9brN1mDI.exeDgH5SjZFleOYoBTyxcgMDlZF9brN1mDI.exesvchost.exectfmon.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DgH5SjZFleOYoBTyxcgMDlZF9brN1mDI.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DgH5SjZFleOYoBTyxcgMDlZF9brN1mDI.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ctfmon.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

DgH5SjZFleOYoBTyxcgMDlZF9brN1mDI.exesvchost.exe

pid	process
2532	DgH5SjZFleOYoBTyxcgMDlZF9brN1mDI.exe
2532	DgH5SjZFleOYoBTyxcgMDlZF9brN1mDI.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe
2760	svchost.exe

Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

DgH5SjZFleOYoBTyxcgMDlZF9brN1mDI.exe

pid process

2532 DgH5SjZFleOYoBTyxcgMDlZF9brN1mDI.exe
2532 DgH5SjZFleOYoBTyxcgMDlZF9brN1mDI.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Explorer.EXE

description pid process

Token: SeShutdownPrivilege 1212 Explorer.EXE
Token: SeShutdownPrivilege 1212 Explorer.EXE
Suspicious use of FindShellTrayWindow 5 IoCs

Processes:

Explorer.EXEctfmon.exe

pid process

1212 Explorer.EXE
1212 Explorer.EXE
1212 Explorer.EXE
1212 Explorer.EXE
2924 ctfmon.exe
Suspicious use of SendNotifyMessage 1 IoCs

Processes:

Explorer.EXE

pid process

1212 Explorer.EXE
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

svchost.exe

pid process

2760 svchost.exe
2760 svchost.exe

description	pid	process
Token: SeShutdownPrivilege	1212	Explorer.EXE
Token: SeShutdownPrivilege	1212	Explorer.EXE

pid	process
1212	Explorer.EXE
1212	Explorer.EXE
1212	Explorer.EXE
1212	Explorer.EXE
2924	ctfmon.exe

pid	process
1212	Explorer.EXE

pid	process
2760	svchost.exe
2760	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

DgH5SjZFleOYoBTyxcgMDlZF9brN1mDI.exeDgH5SjZFleOYoBTyxcgMDlZF9brN1mDI.exeexplorer.exeExplorer.EXEsvchost.exe

description	pid	process	target process
PID 2696 wrote to memory of 2532	2696	DgH5SjZFleOYoBTyxcgMDlZF9brN1mDI.exe	DgH5SjZFleOYoBTyxcgMDlZF9brN1mDI.exe
PID 2696 wrote to memory of 2532	2696	DgH5SjZFleOYoBTyxcgMDlZF9brN1mDI.exe	DgH5SjZFleOYoBTyxcgMDlZF9brN1mDI.exe
PID 2696 wrote to memory of 2532	2696	DgH5SjZFleOYoBTyxcgMDlZF9brN1mDI.exe	DgH5SjZFleOYoBTyxcgMDlZF9brN1mDI.exe
PID 2696 wrote to memory of 2532	2696	DgH5SjZFleOYoBTyxcgMDlZF9brN1mDI.exe	DgH5SjZFleOYoBTyxcgMDlZF9brN1mDI.exe
PID 2696 wrote to memory of 2532	2696	DgH5SjZFleOYoBTyxcgMDlZF9brN1mDI.exe	DgH5SjZFleOYoBTyxcgMDlZF9brN1mDI.exe
PID 2696 wrote to memory of 2532	2696	DgH5SjZFleOYoBTyxcgMDlZF9brN1mDI.exe	DgH5SjZFleOYoBTyxcgMDlZF9brN1mDI.exe
PID 2696 wrote to memory of 2532	2696	DgH5SjZFleOYoBTyxcgMDlZF9brN1mDI.exe	DgH5SjZFleOYoBTyxcgMDlZF9brN1mDI.exe
PID 2696 wrote to memory of 2532	2696	DgH5SjZFleOYoBTyxcgMDlZF9brN1mDI.exe	DgH5SjZFleOYoBTyxcgMDlZF9brN1mDI.exe
PID 2696 wrote to memory of 2532	2696	DgH5SjZFleOYoBTyxcgMDlZF9brN1mDI.exe	DgH5SjZFleOYoBTyxcgMDlZF9brN1mDI.exe
PID 2532 wrote to memory of 2296	2532	DgH5SjZFleOYoBTyxcgMDlZF9brN1mDI.exe	explorer.exe
PID 2532 wrote to memory of 2296	2532	DgH5SjZFleOYoBTyxcgMDlZF9brN1mDI.exe	explorer.exe
PID 2532 wrote to memory of 2296	2532	DgH5SjZFleOYoBTyxcgMDlZF9brN1mDI.exe	explorer.exe
PID 2532 wrote to memory of 2296	2532	DgH5SjZFleOYoBTyxcgMDlZF9brN1mDI.exe	explorer.exe
PID 2296 wrote to memory of 1212	2296	explorer.exe	Explorer.EXE
PID 1212 wrote to memory of 2760	1212	Explorer.EXE	svchost.exe
PID 1212 wrote to memory of 2760	1212	Explorer.EXE	svchost.exe
PID 1212 wrote to memory of 2760	1212	Explorer.EXE	svchost.exe
PID 1212 wrote to memory of 2760	1212	Explorer.EXE	svchost.exe
PID 1212 wrote to memory of 2760	1212	Explorer.EXE	svchost.exe
PID 2760 wrote to memory of 2924	2760	svchost.exe	ctfmon.exe
PID 2760 wrote to memory of 2924	2760	svchost.exe	ctfmon.exe
PID 2760 wrote to memory of 2924	2760	svchost.exe	ctfmon.exe
PID 2760 wrote to memory of 2924	2760	svchost.exe	ctfmon.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1212
- C:\Users\Admin\AppData\Local\Temp\DgH5SjZFleOYoBTyxcgMDlZF9brN1mDI.exe
  "C:\Users\Admin\AppData\Local\Temp\DgH5SjZFleOYoBTyxcgMDlZF9brN1mDI.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2696
- - C:\Users\Admin\AppData\Local\Temp\DgH5SjZFleOYoBTyxcgMDlZF9brN1mDI.exe
    C:\Users\Admin\AppData\Local\Temp\DgH5SjZFleOYoBTyxcgMDlZF9brN1mDI.exe
    3⤵
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of WriteProcessMemory
    PID:2532
  - - C:\Windows\explorer.exe
      "C:\Windows\explorer.exe"
      4⤵
      Suspicious use of NtSetInformationThreadHideFromDebugger
      Suspicious use of WriteProcessMemory
      PID:2296
- C:\Windows\syswow64\svchost.exe
  "C:\Windows\syswow64\svchost.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2760
- - C:\Windows\SysWOW64\ctfmon.exe
    ctfmon.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of FindShellTrayWindow
    PID:2924

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1212-22-0x0000000002AB0000-0x0000000002AB9000-memory.dmp

Filesize
36KB

Download
memory/2296-27-0x00000000FFB50000-0x00000000FFE10000-memory.dmp

Filesize
2.8MB

Download
memory/2296-46-0x00000000FFB50000-0x00000000FFE10000-memory.dmp

Filesize
2.8MB

Download
memory/2296-25-0x0000000000030000-0x0000000000040000-memory.dmp

Filesize
64KB

Download
memory/2532-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2532-12-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2532-8-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2532-6-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2532-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2532-15-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2532-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2532-18-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2532-17-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2532-21-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2532-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2696-13-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/2696-1-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2696-0-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/2760-28-0x00000000000C0000-0x00000000000C9000-memory.dmp

Filesize
36KB

Download
memory/2760-31-0x00000000000C0000-0x00000000000C9000-memory.dmp

Filesize
36KB

Download
memory/2760-34-0x00000000000C0000-0x00000000000C9000-memory.dmp

Filesize
36KB

Download
memory/2760-48-0x00000000000C0000-0x00000000000C9000-memory.dmp

Filesize
36KB

Download